<Directory> directive doesn't work

Hello,
I trying to restrict access to certain directories with no luck. I getting 500'th server error, any ideas whats wrong which this code:

<Directory ~ "^.(dira|dirb|dirc)$">
  Order Deny,Allow
  Deny from All
</Directory>

Code (markup):

Thanks.

 

50o-th error means internal server error - not access error. Typically this error occurs when server can't execute some script normally

 

I know what 500'th error means, it occurs then i create .htaccess with that content.

 

Read your apache error logs. <Directory> directive is not allowed in htaccess context! http://httpd.apache.org/docs/2.2/mod/core.html#directory